James



J. 0. ALWOOD.

9 R l Nw on. N A MD BE Patented May 27,1919.

. ame vkboz extol-14014.:

' To all whom it may concern.-

in shares.

erms 0. anwoon, -or arcmrorm, vmeme.

HYDROOAMON-BUWR.

mot er; 1

. Specification of Letters .latent.

Patented May 2'3, ma

Application med August 15, 191a; Serial no. 250,014.

a s ecification.

s invention relates to hydrocarbon burners and has for its object toprovide a comparatively simple and thoroughly-efficient. device of thischaracter in which the. oil from a supply reservoir is fed underpressure into a steam chamber and converted into hydrocarbon gas fordelivery to the burner.

A further object of the invention 1s to provide a hydrocarbon burnerincludlng a boiler, operatively connected with a source of water supply,and having asteam chamber sup orted thereon and disposed 1n the path 0the flame from the burner, the steam from the boiler being dischargedinto said chamber at a oint' above the intake of theifuel pipe W erebyto 'volatil 1ze' the oil and prevent the surplus 011 or drippings fromentering the boller. D

A-further object is to provide an 011 pan disposed beneath the burnerand fed from the' fuel supply pipe, said pan forming, in efiect, a pilotburner. and serving to automatically light the main burner 1n case thesupply of gas to the mam burner 1s interrupted or suddenly cut-01f andthen permittin to flow again.

further objectis to provide a burner which will produce a maximum amountof heat with little if any'smoke or objectionable odor.

A still further object of the invention is generally to improve thisclass of devices so as to increase their utility, durability andefficiency.

Other and incidental objects will appear as the description proceeds. Inthe drawings wherein'I have illustrated the preferred embodiment of theinvention, and wherein similar reference characters designatecorresponding parts throughout the several views: a I

Figure 1 is a side elevation, partly in section, ofa hydrocarbon burnerconstructed in accordance with the present invention;

Fig. 2 is a top plan view thereof, a portion of one corner of the boilerbeing broken away to show the point of attachment ofthe water supplypipe;

Fig. 3- is a'detail sectional View, showing the connection between theboiler and steam chamber.

Corresponding and like parts are re ferred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

The improved hydrocarbon burner form-- ing the subject-matter of thepresent inventlon comprlses a fiat substantially rectangular boiler 5,hollow inthe center, as indicated at 6, and including side members 7 andend members 8, said -members being preferably square in cross-section,as best shown in Fig. 1 of the drawings. 1 Disposed abovethe boiler 5and preferably formed integral therewith is a tubular member 9 whichextends longitudinally of the boiler directly above the opening 6 and ispreferably centered With respect thereto, said tubular member having itsopposite ends curved or rounded at 10 and its interior unobstructed toform a steam chamber 11. One end of the tubular member 9 is providedwith a nipple 12 in which is seated the adjacent, end of a fuel pipe 13,the opposite end of the fuel pipe 13 being spaced longitudinally fromthe adjacent wall of the steam chamber to form a mixing chamber 14.Connected with the outer end of the pipe 13 at the nipple 12 is a fuelsupplypipe 15 which extends Within an oil tank or reservoir 16, thequantity of oil fed into the steam generator being controlled by a valve17. Extending transversely across one of the end members 8 of the boileris a partition 18 and communicating with the interior of the boiler onone side of the partition is a Water supply pipe 19 extending to asupply tank or reservoir 20, there being a valve 21, similar I inconstruction to the valve 17, disposed above the tank 20 and by means ofwhich the quantity of water fed to the boiler may be controlled at will.The tanks 16 and 20 are connected by a pipe 22 from which extends acentral pipe 23 leading to an. air pump, not shown, whereby the fuel.and water may be fed to the boiler at all times "under pressure. Asuitable gage 24 is inserted in one of the tanks, preferably the oiltank 16 for determlnmg the exact pressure of the airwithin said tanks.

The am from the boiler is fed into-thechamber 11 through a 'short "pi eor conductor 25 which is curved to con cm to the Ecurvature of thead'acent end'wall of 1 top of the steam chamber directly above the.

fuel pipe 13 whereby the fuel the tubular member and discharges at thecarbon gas for delivery to the burner, indi- "cated at 26. By having themouth of the conductor arranged above the pipe 13 liability of anysurplus oil or drlppings is effectually eliminate The burner 26 isdisposed in a horizontal plane and is connected with the steam chamber11 at a point" spaced from and directly in advance of the pipe-1'3through,

adjacent end of the fuel the medium of a pipe sec on 27 threaded intoanopening 28 in the tubular member 9,

as shown. Disposed beneath the boiler and preferably extending theentire length thereof is an oil pan 29' adapted to contain cmders, slag,broken fire-brick or other refractory material and intov which oil isfed through a branch'pipe'30 connected with the 1 main fuel supply pi e15, there being a 'valve 31 in the brane pipe 30-for controlling thequantity of oil deliveredto the pan 29 at will. The flame from the oilpan 29 not only serves as an additional means for heating the boiler butalso forms, in effect, a pilot burner for automatically lighting the gas'at the main burner 26 should the flow of gas to the mainburner 26 besud-' denly interrupted or cut-ofl and then permitted to flow again. Thetubular member 46 9 being disposed above the opening 6 in the boiler isdirectly in the path of the flame from the,..burner so that the steamchamber is maintained at the desired temperature at all times andinasmuch as the oil pipe 13 is disposed within the steam chamber, thetubular member 9 acts as, 'a housing therefor and prevents the flamefrom coming in direct contact therewith.

In operation the valve 31 is partially opened so as to permit a, smallquantity of oil to drip into the pan 29 which oil'is then lighted, afterwhich the valve 21 is opened and the water permitted to circulate withinthe boiler. The heat from the oil pan will enerate steam in the boiler 5which steam ows upwardly through the conductor 25 and is discharged intothe chamber v1'1 around the fuel pipe 13. The valve 17 is then adjusted-to permit the desired quantity of oil to flow throu h the steamchamber 11. s the Oll passesthrough the pipe 13 it becomes heated and isvolatllized and as the gas issues from the end of the pipe 13 itcommingles with the steam in the mixingchamber and is converted intohydrocarbon gas, which gas passes through pipe 15 into the ing - fromthe pipe 13 flowlng back into the boiler Y 15 I cause the steam to sweegenerate steam 'in' the boiler,

the ipe 27 a; the busier 2e and 'is i aaea by t e flame from the pan 29.As the burner 26 is dis from said burner will be 'directly'lon 'tudimlof the boiler and not only heat t e side and and members of the boiler,but the heat from the flamewill pass upwardly throu h the centralopening 6 and superheat t e d in a. horlzontal plane the flame anyoilthrough the pipe 13 until fast .asit enters the mixing chamber andthe oil vapor through the pipe 27 to the ame. By avoidmg the use of thepipe 13 and burner 26 to the danger of oil carbonizing or caking in thepipe 13 before being surround and heated by steam, 1s reduced to aminimum and there 1s I no danger of any sediment or deposits forming insaid 'ipe or in the mixing chamber 14 that will ave to be removed by thesteam when it is finally generated and becomes active.

While the boiler 7 is shown substantially rectangular in shape it will,of course, be understood that the boiler may be of any other desiredshape and that the tubular member 9 instead-of being formed integralwith the boller maybe made separately and subsequently bolted orotherwlse attached to the boiler iffound desirable or necessary in theactual practice of the invention. In-

asmuch as the oil passing through the pipe 13 is constantly heated bythe steam inthe chamber 11, said oil will not have a tendency to cake orstick within the pipe 13 so as'to leavedeposits of carbon therein andthus cause the burner to smoke and give off a disagreeable odor. It willhere be noted that owing to the curvature of the conductor 25, the steampassing there'through will strike the upper wall of the tubular member 9and thence be deflected downwardly around the fuel pipe 13 and forwardlyin the direction of the mixing chamber 1 so that not only' is the fuelin the pipe 18 "maintained at the proper temperature, but a thorough.intermixing of the steam and oil gas is effected in the mixing chamber14 rior to its delivery to the main burner. he device is extremelysimple in construction and may be manufactured and placed on thecoilnlparatively smal cost.

aving thus described my invention, what is claimed as new is: 1. Ahydrocarbon burner including a boiler, a steam chamber operativelyconnected with the boiler, a fuel su ply pipe extend ing within thesteam cham r and terminating short ofione end thereof,a steam conmarketat ing beneath the boiler.

neeaear steam chamber at a point in advance of the discharge end of thefuel pipe and discharg- 2. A hydrocarbon burner including a boiler, asteam chamber operatively connected with the boiler, a partitionextending across the boiler, a fuel supply pipe extending withinthesteam chamber, a steam conductor havin with the interior of theboiler on one side of the partition and its other end curved laterallyand discharging to the steam chamber at a point above the fuel pipe,means for supplying water into the boiler on the other side of thepartition, and a burner connected with the steam chamber at a point inadvance of the dischar e end of the fuel pipe and extending beneafii theboiler.

3. A. hydrocarbon burner including a boiler, a steam chamber disposedabove the boiler, a fuel supply pipe extending within the steam chamberand terminating short of one end thereof, a conductor forming a sourceof communication between the bo1ler and steam. chamber and having itsend discharging at a point above the fuel pipe, and a burnercommunicating with the interior of the steam chamber and dischargingbeneath the boiler.

an oil an arranged beneath the boiler, and

a nozz e connected with the steam chamber and discharging between theboiler and oil pan.

5. A hydrocarbon burner including a boiler having its central portionhollow, a

'ftubular member connected with the boiler and forming a steam chamber,a fuel'pipe extending within the steam chamber and terminating short-ofone end thereof, means for feeding oil under pressure to said pipe,

one end thereof connected means for feeding water under pressure intothe boiler, a pipe leading from the boiler and dischar ing into thesteam chamber at a point a ove the fuel pipe, an oil pan disposedbeneath the boiler, a nozzle connected with the steam chamber andextending be tween the oil pan and boiler, and means for supplying oilto. the oil pan.

6. A boiler in the form of a rectangular tube, a tubular member disposedabove the upper surface of the boiler and forming a steam chamber, apartition extending across the boiler, means for admitting water intothe boiler at one side of the partition, a steam conductor connectedwith the interior of the boiler on the other side of the partition andextending within the steam chamber, a fuel supply pipe extending withinthe steam chamber and having its inner end spaced from the inner end ofthe steam chamber, a burner having one end thereof communicating withthe interior of the steam chamber and its other end extending in asubstantially horizontal plane beneath the boiler, an oil pan arrangedbeneath the boiler, means for supplying oil under pressure to the fuelpipe, and means for supplying oil from the supply means to the oil pan.I

A hydrocarbon burner including a boiler having hollow side and endmembers,-

a'partition extending across one of the end members,,a tubular membersecured to the upper surface of the boiler and forming a steam chamber,the opposite ends of whlch are curved, a conductor curved to conform toone end of the steam chamber and; communicating with the interior of theboiler on one side of thepartition, means for supplying water underpressure into the boiler on ydrocarbon burner including a' the otherside of the partition, a fuel pipe extending within the steam chamberand disposed in a plane below the plane of the discharge end of thesteam conductor, a burner communicating with the interior of the steamchamber and discharging beneath the boiler, an oil pan, and means forsupply- C in oil under pressure to the fuel pipe and oi pan,respectively.

lln testimony whereof I aflix my signature.

JAMES o. xnwoon. [n 8.

